Portable tray for attachment to a vertical post



FIG. 1 is a bottom perspective view of a portable tray for attachment toa vertical post showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a side elevational view thereof, the other side elevationbeing a mirror image thereof; and

FIG. 7 is a top perspective view thereof.

The ornamental design for a portable tray for attachment to a verticalpost, as shown and described.